P.P.S. Postscript additional.
P.R. Prize-ring; Porto Rico.
P.R., Populus Romanus=The Roman people.
pr. Pair; Per; Present; Price; Pronoun; Prince; Priest; Provençal.
P.R.A. President of the Royal Academy.
P.R.B. Pre-Raphaelite Brotherhood.
Preb. Prebend, Prebendary.
pref. Preface.
Pres., Preses. President.
P.R.I.B.A. President of the Royal Institute of British Architects.